A friend of mine here in Austin used to market a chipotle jelly based around apple juice, but I can only imagine that any fruit would work. Hudson's on the Bend (famous southwestern/game restaurant in Austin) markets a raspberry chipotle sauce that is very popular in these parts. You might try googling it, or try Jeff Blank's "Fearless Cooking". As far as the marmalade is concerned, I've always prefered the flavor of dried chilies with orange. Try flaking (flash fry and crush) a seeded ancho, passila, or cascabel, then stir the flakes into your marmalade base for the last ten minutes of cooking. I've done this with ancho, and used the marmalade as a glaze and sauce on duck or pork.